Literally, "false step."
My god.
Literally, "on the card" or "according to the card."
Literally, "I don't know what."
That's life.
On the contrary.
Literally, "already seen."
Literally, "reason for being."
Literally, "know do," meaning "know how."
ANSWERS:
Faux pas
Mon dieu
A la carte
Je ne sais quoi
C'est la vie
Au contraire
Deja vu
Raison d'etre
Savoir-faire